<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    
    <style>

.box{
            width: 200px;
            height: 200px;
            background: red;
            /* display: grid; 块级网格 */
            /* display: inline-grid; 行内块级网格*/
            display:grid;

        }
        /* 什么标签都可以加入display grid */

    </style>

</head>
<body>
    <apan>1111111111111</apan>
    <apan class="box">222222222222</apan>
    <apan>33333333333</apan>
</body>
</html>